Bird Flight (Record no. 60698)

000 -LEADER
fixed length control field 02655nam a22002057a 4500
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 241224b1991 |||do||| |||| 00| 0 eng d
041 ## - LANGUAGE CODE
Language code of text/sound track or separate title eng
080 ## - UNIVERSAL DECIMAL CLASSIFICATION NUMBER
Universal Decimal Classification number 598.2:533.6
Item number DHA
100 ## - MAIN ENTRY--AUTHOR NAME
Personal name Dhawan, S
245 ## - TITLE STATEMENT
Title Bird Flight
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Place of publication Banagalore
Name of publisher Indian Academy of Science & Raman Research Institute
Year of publication 1991
300 ## - PHYSICAL DESCRIPTION
Number of Pages 89p.
Other physical details ill.
500 ## - GENERAL NOTE
General note Publication: Sadhana, 16, 199112, 275<br/>ISSN:0256-2499
520 ## - SUMMARY, ETC.
Summary, etc Avian flight has fascinated man from ancient times but it is only in recent years that the efforts of scientists from diverse fields have been able, to some extent, to understand and explain the dynamics of animal flight. This article is based on some observations of birds in the Nellapetu and Pulicat Lake sanctuaries on the east coast of India. It essentially summarises the results of application of well-known principles of elementary incompressible aerodynamics to the flapping and gliding flight of birds. For a reader unfamiliar with the subject, brief notes on evolution of animal flight, the occurrence and classification of bird species and a description of the structure and musculature of wings and feathers and elementary theories of lift and drag are included. Observations show an incredible diversity of flight techniques and manoeuvers. A general description of the main types of bird flight and some illustrations of wing shapes and the motion of birds while taking off, landing and hovering are given. Viewing the flapping wing as a quasi-steady device imparting momentum to the air surrounding it through the expenditure of muscular energy derived from oxidation of fat, estimates of the power required to fly and that available from metabolic energy conversion can be made. Gliding and soaring flight can then be understood reasonably well. Approximate results of bird performance including range and endurance can also be obtained for steady flapping flight. However it is still not possible to calculate and predict in detail all aspects of the flight of a specific type of bird. Only a brief mention is made of the essentially nonlinear and non-steady nature of the aerodynamics of flapping bird wings which needs further research. Using dimensional analysis, the effects of bird size and weight are discussed. The intriguing question of relating the processes of natural selection for a given species in evolving a particular wing shape and flight mode that must be conducive to its continued survival remains open for much further research and study
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term Aerodynamics
Form subdivision Bird
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term Flight
Form subdivision biophysics
690 ## - LOCAL SUBJECT ADDED ENTRY--TOPICAL TERM (OCLC, RLIN)
Topical term or geographic name as entry element Computational Biology
856 ## - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier 10.1007/BF02745345
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type BOOKS
Holdings
Withdrawn status Lost status Damaged status Not for loan Home library Current library Shelving location Full call number Accession Number Koha item type Public note Owner (If the Item is Gratis)
      1 IMSc Library IMSc Library DISPLAY 598.2:533.6 DHA 78323 BOOKS New Arrival upto 15 January 2025 Gratis by Prof. Amritanshu Prasad
The Institute of Mathematical Sciences, Chennai, India

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